Home / 668,718.40-1,003,077.60-444,380.80

Finding the Fourth Proportional to 668,718.40, 1,003,077.60 and 444,380.80

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Solution

The fourth proportional to 668,718.40, 1,003,077.60 and 444,380.80 is: 666,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,718.40 : 1,003,077.60 = 444,380.80 : x
  2. Step 2: Convert to fraction form
    668,718.40/1,003,077.60 = 444,380.80/x
  3. Step 3: Cross multiply
    668,718.40x = 1,003,077.60 × 444,380.80
  4. Step 4: Simplify right side
    668,718.40x = 445,748,426,350.08
  5. Step 5: Solve for x
    x = 445,748,426,350.08/668,718.40
  6. Step 6: Final answer
    x = 666,571.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.